diff --git a/attestation-agent/attester/src/snp/mod.rs b/attestation-agent/attester/src/snp/mod.rs
index 78ba8b6ba..cbdb842d4 100644
--- a/attestation-agent/attester/src/snp/mod.rs
+++ b/attestation-agent/attester/src/snp/mod.rs
@@ -91,7 +91,7 @@ impl Attester for SnpAttester {
         );
 
         let derived_key = firmware
-            .get_derived_key(Some(&root_key), request)
+            .get_derived_key(Some(root_key), request)
             .context("Failed to get derived key")?;
 
         Ok(derived_key.to_vec())